Apparatus for use by persons working in irrespirable atmosphere or under water.



I A. T.'WINB0RN. APPARATUS FOR USE BY PERSDNS WORKING IN IRRESPIRABLE ATMOSPHERES 0R UNDER WATER.

APPLICATION FILED DBO. 30, 1912.

WLZII. 5&3

A. T. WINBORN.- v APPARATUS FOR. USE BY PERSONS WORKING IN IRRESPIRABLE ATMOSPHERES 0R [1mm WAKE,

APPLICATION TILED BBQ. 30, 1912.

I fizz/612.1111:

nnirnn siurrns PATENT QFFlItJE.

I ARTHUR THOMAS 'WINIBGRN, OF CBUMLIN, WALES.

APPARATUSEOR USE BY lERSQNS WORKING IN IRRESPI-EABLE ATMQEiPHEBEfiOF. UNDER- WATER.

Specification of Letters Patent.

Application filed December 30, 1912. Serial l lo. 739,355.

of which the following is a specification.

This invention relatesto apparatus designed for use by persons working in irrespiroble atmospheres or under water and particularly to that class of self-contained rescuing and diving apparatus in which granulated caustic soda or caustic otash is used for regenerating air by absor in carbonic acid gas contained in the ex alcd breath of the wearer of the apparatus and in which the caustic soda or potash is carried upon trays arranged in such a manner that the exhaled breath is caused to pass over or through the granulated caustic soda or potash in a radial, lateral or other direction.

The object of my invention is to simplify the construction 0:E such apparatus andto this end I provide an apparatus comprising a casing or chamber of any suitable shape the said chamber being provided with a se ries of superposed wire-gauze trays having ridges which form passages for the exhaled breath the recesses or cavities between the ridges serving to hold the caustic soda or potash through and over which the exhaled breath is caused to pass.

To enable the invention to be fully understood, I will describe the same by reference to the accompanying drawing, in which Figure 1 is a sectional elevation of one form of apparatus constructed according to my invent-ion. Fig. 2 is a plan of one of the wire g'auze trays shown in Fig. 1. Fig. 3.

is a similar view indicating the position of a tray immediately above that shown in Fig. 2. Fig. 4 is aplan of a modified form of a tray. Fig. 5 is a plan showing the po sition of adjacent trays such as those shown in Fig. 4. Fig. 6 is a plan of a further modified form of tray. Fig. 7 is a plan of a tray for use with that shown in Fi 6. Fig. 8 is a section on the line 88 of igs. 6 and 7. Fig. 9 is a sectional elevation of a further modification of my invention. Fig. 10 is a section on the line 10-10 of Fi 9, and Fig. 11 is a sectional elevation illusof Great the trating a furthenmodified form .of my invcntlon.

Referring first to'Figs. 1, 12 and 3 a is the casing or chamber which is here shown of a clrcular fgrmand a is a removable cover w1th wh ch the casing is provided, the said cover beiu fixed in position by any sultablemeans. T e bottom a? of the casmg IS also made removable. b, 6 are" the wire-gauge trays fittin within 'tli losing and provided with para tel ridges ssuming passages the traysbeiug so laced -rela,- tively to each other that the ri ges of one jacent tray. at is a rod which; passes throughholes in the trays and serves to re move the whole .of the trays from the chamber together. .2, e are the'usualfinlet and outlet fittings for the attachmcnt pf the apparatus to the breathin appliane. These fittings open respective y into the hpaces f and g at the bottom and top of the casing. In Fi d and 5 I have shown a modified form 0 tray in which the ridges c, c arearranged radially.

Fig. 6 illustratcs-afurther modified form of tray which has'a'single ridge extending from edge-to edge and Fig. 7' shows-a form of tray designed to be used Withthat shown in Fig. 6 in which two ridges, also extend ing from edge toedge, are employed and when placed in position the said ridges-lie parallel to each other as shown in section at Fig. 8. g

In Figs. 9 and 10 Ihave shown a rectangular form of apparatus in which the trays are arranged as shown in Figs. 6, 7 and 8.

The apparatus operates as follows, that is to say, the exhaled breath of the wearer enters through the fitting e to the" space f, whence it passes upward through the wire gauze-trays being thoroughly distributed so that it comes into contact with a large surface of the caustic soda or the like and is thoroughly purified when it "reaches the space '9 before leaving the apparatus through the outlet 6 Fig. 11 shows a modification of the arrangcment shown in Figs. 9'and 10 which ment, namely, two casings a and contained P trays b, 7), the said casings communicating with each other through a passage it so that theair to be regenerated entering through.

Patented oat. 28.1913.

tray are at right angles to thoseof each adconsists of a duplication of such arrange the inlet 6 at the bottom of the left hand casing passes upward through the trays thence through the passage h to the lower part of the right hand casing whence it rises through the trays and leaves by the outlet 6 1. In an apparatus of the kind described, the combination with a casing having an inlet and outlet, of a number of'superimposed perforated trays having ridges for1ning passages for the exhaled air and con tainers for a purifying agent, the ridges of one tray being at right angles to those of each adjacent tray.

2. In an apparatus of the kind described,

the combination. with a casing provided with a removable top and bottom, an inlet provided in said bottom and an outlet provided in said top, of a number of superposed perforated trays having ridges forming passages for the exhaled air and containers for a purifying agent, the ridges of one tray being at right angles to those of each adji1- cent tray, and means connecting said trays whereby the trays may all be removed from the casing at one time.

3. In an apparatus of the kind described, the combination with a casing provided with an inlet and outlet, of a number of superposed perforated trays having ridges forming passages for the exhaled air and containers for a purifying agent.

4. In an apparatus of the kind described, the combination with a casing provided with an inlet and outlet, of a number of super posed Wire gauze trays having ridges forming passages for the exhaled air and containers for a purifying agent between said ridges.

ARTHUR THOMAS lVI'NBOR-N.

\Vitnesses:

Gnonou HARRY Benson JAMES, .DAVID GouooN SMITH. 

